CN102635534A - Fully-closed noise reduction structure of refrigeration compressor - Google Patents
Fully-closed noise reduction structure of refrigeration compressor Download PDFInfo
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- CN102635534A CN102635534A CN2012100770661A CN201210077066A CN102635534A CN 102635534 A CN102635534 A CN 102635534A CN 2012100770661 A CN2012100770661 A CN 2012100770661A CN 201210077066 A CN201210077066 A CN 201210077066A CN 102635534 A CN102635534 A CN 102635534A
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- valve plate
- exhaust valve
- limiting board
- damping
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Abstract
The invention discloses a fully-closed noise reduction structure of a refrigeration compressor. The refrigeration compressor is provided with an exhaust valve. The exhaust valve consists of a valve plate (1), an exhaust valve block (2) and an exhaust valve block limiting plate, the exhaust valve block limiting plate is a cold-rolled carbon steel limiting plate (3), and a damping material layer is arranged on the surface, facing to the exhaust valve block (2), of the cold-rolled carbon steel limiting plate (3). In the technical scheme, an exhaust valve block impact zone is provided with a damping valve seat material or buffering valve block, sound energy generated by mechanical noise excited by the exhaust valve block can be absorbed and consumed by the damping valve seat material or buffering valve block, impedance matching between the exhaust valve block and the valve seat material is destroyed, noise excited by a noise source is lowered, a noise propagation route is cut off, and knocking mechanical noise of the compressor is lowered.
Description
Technical field
The invention belongs to the technical field of refrigeration compressor.Specifically, the present invention relates to a kind of fully-enclosed refrigerating compressor noise-reduction structure.
Background technique
In present piston compressor, main noise source is mechanical noise, aerodynamics noise and electromagnetic noise, and the main cause that electromagnetic noise produces to be running, fundamental flux and the higher harmonics magnetic flux of motor radially get into air gap.
The frequency that its tangential vibrations produces is generally the integral multiple of rotor rotation fundamental frequency, and its frequency is lower, and it is not high to evoke energy, and through strengthening motor, rotor machining accuracy and assembly precision, noise of motor generally can be ignored;
The aerodynamics noise is through increasing suction, exhaust one-level or two-stage reactive muffling and through insertion tube the compressor inlet and outlet being carried out runner optimization, reduced the gas flow resistance, and the aerodynamics noise can be controlled in the claimed range;
And mechanical noise is except improving part processing precision, and some noise can't be avoided.As shown in Figure 1; Exhaust valve plate 2 of the prior art is installed in the groove valve plate 1, and cold rolling carbon steel limiting board 3 is installed on exhaust valve plate 2 then, and cold rolling carbon steel limiting board 3 is the good materials of a kind of rigidity; Exhaust valve plate 2 is a kind of hardness height and the high carbon steel that certain rigidity is arranged; Exhaust valve plate 2 knocks on cold rolling carbon steel limiting board 3 with the nearly 2960 times frequency of per minute, has hit valve seat sound and has evoked the energy height, and be the high-frequency wideband characteristic; At the same time, its noise can form new noise source through refrigeration medium and pump body structure transmission, and excitation housing aggravation vibration forms bigger noise.
Summary of the invention
The present invention provides the fully-enclosed refrigerating compressor noise-reduction structure, its objective is the effect that improves vibration and noise reducing.
To achieve these goals, the technological scheme taked of the present invention is:
A kind of hermetically sealed compressor provided by the invention becomes the rigidity denoising structure; Described refrigeration compressor is provided with outlet valve; Comprise valve plate, exhaust valve plate and exhaust valve plate limiting board; Described exhaust valve plate limiting board is cold rolling carbon steel limiting board, on the described cold rolling carbon steel limiting board towards the surface of exhaust valve plate one side on be provided with the damping material layer.
Described damping material layer is the spraying damping layer, and the material composition of described spraying damping layer mainly comprises macromolecule resin.
In described spraying damping layer, also be mixed with epoxies priming paint.
Perhaps, described damping material layer covers sheet for damping alloy.
The material that described damping alloy covers sheet is that Mn-Cu is an alloy.
Another kind of fully-enclosed refrigerating compressor noise-reduction structure provided by the invention; Described refrigeration compressor is provided with outlet valve; Comprise valve plate, exhaust valve plate and exhaust valve plate limiting board, described exhaust valve plate limiting board is the compostie damp sheet metal, and described compostie damp metal plate structure is three layers; The two-layer of its outside is compostie damp surface layer plate, and the centre accompanies one deck compostie damp sandwich board.
The material of described compostie damp surface layer plate is steel or aluminium; The material of described compostie damp sandwich board is the viscoelasticity macromolecular material.
A kind of hermetically sealed compressor that the present invention also provides becomes the rigidity denoising structure, and described refrigeration compressor is provided with outlet valve, comprises valve plate, exhaust valve plate and exhaust valve plate limiting board, and described exhaust valve plate limiting board is cold rolling carbon steel limiting board; Described outlet valve is established the exhaust buffer substrate tablet, and described exhaust buffer substrate tablet is located between described exhaust valve plate and the cold rolling carbon steel limiting board, and is fixed on the described exhaust valve plate.
The material of described exhaust buffer substrate tablet is a spring steel.
The present invention adopts technique scheme; Have the damping and amortization seat material or cushion valve block because exhaust valve plate impacts; The acoustic energy that mechanical noise produced of exhaust valve plate excitation is by valve seat damping and amortization material or cushion valve block absorption consumption; Destroy the impedence matching between exhaust valve plate and the seat material, reduced the noise of noise source excitation and cut off the noise transmission approach, reduced the mechanical noise that compressor knocks.
Description of drawings
The mark of facing down among expressed content of each width of cloth accompanying drawing of this specification and the figure is made brief description:
Fig. 1 is the schematic representation of structure described in this specification background technique;
Fig. 2 is the structural representation of the embodiment of the invention one;
Fig. 3 is the mounting structure schematic representation of structure shown in Figure 2 in valve plate;
Fig. 4 is the structural representation of the embodiment of the invention two;
Fig. 5 is the mounting structure schematic representation of structure shown in Figure 4 in valve plate;
Fig. 6 is the structural representation of the embodiment of the invention three;
Fig. 7 is the mounting structure schematic representation of structure shown in Figure 6 in valve plate;
Fig. 8 is the structural representation of the embodiment of the invention four;
Fig. 9 is the mounting structure schematic representation of structure shown in Figure 7 in valve plate.
Be labeled as among the figure:
1, groove valve plate, 2, exhaust valve plate, 3, cold rolling carbon steel limiting board, 4, the spraying damping layer, 5, damping alloy covers sheet, 6, the compostie damp sheet metal, 7, compostie damp surface layer plate, 8, the compostie damp sandwich board, 9, the exhaust buffer substrate tablet.
Embodiment
Contrast accompanying drawing below, through the description to embodiment, specific embodiments of the invention is done further detailed explanation, to help those skilled in the art inventive concept of the present invention, technological scheme is had more complete, accurate and deep understanding.
Structure of the present invention as Fig. 2 to Fig. 9 expresses is the fully-enclosed refrigerating compressor noise-reduction structure.
In order to solve the problem that exists at the described present known technology of this specification background technique part and to overcome its defective, realize the goal of the invention of the effect of raising vibration and noise reducing, the embodiment below the present invention has taked:
Embodiment one:
Like Fig. 2, shown in Figure 3; A kind of fully-enclosed refrigerating compressor noise-reduction structure provided by the invention; Described refrigeration compressor is provided with outlet valve; Comprise valve plate 1, exhaust valve plate 2 and exhaust valve plate limiting board, described exhaust valve plate limiting board is cold rolling carbon steel limiting board 3, on the described cold rolling carbon steel limiting board 3 towards the surface of exhaust valve plate 2 one side on be provided with the damping material layer.
Described damping material layer is spraying damping layer 4, and the material composition of described spraying damping layer 4 mainly comprises macromolecule resin.
In described spraying damping layer 4, also be mixed with epoxies priming paint.
Present embodiment is to existing valve board assembly; Change the former exhaust limiting board and the way of contact of valve block rigidity; On the exhaust limiting board, increase the damping material coating, damping paint is formulated by macromolecule resin adding an amount of filler and auxiliary material, can be coated on the surface of various metal plate-like structure; Sapecial coating with vibration damping, thermal insulation and certain sealability can be widely used in the vibration damping of aircraft, boats and ships, vehicle and various machineries.
Concrete mode of execution is:
Adopt macromolecule resin, add an amount of filler and auxiliary material, preparation damping paint cladding material is painted on exhaust limiting board restriction exhaust valve plate lift one side with damping paint, forms spraying damping layer 4.Perhaps damping paint and epoxies priming paint are used, with the coating that is mixed with epoxies priming paint be painted on the exhaust limit plate with the spacing one side of exhaust valve plate lift, form spraying damping layer 4.Constitute specific coating structure, can play the effect of vibration and noise reducing,
Coating thickness is controlled at 0.3～0.5mm.Mode as shown in Figure 3 is assembled: exhaust valve plate 2 is installed in the groove valve plate 1, the cold rolling carbon structure limiting board 3 that is coated with the thick spraying damping layer 4 of 0.3mm～0.5mm is installed on exhaust valve plate 2 then.
Because coating can be painted on the body structure surface, thus easy to process, especially to baroque surface,, more embody its superiority like complicated surfaces such as naval vessels, aircrafts.Damping paint generally directly is coated on the metal sheet surface, also can be used with epoxies priming paint.
Embodiment two:
Like Fig. 4, shown in Figure 5; A kind of fully-enclosed refrigerating compressor noise-reduction structure provided by the invention; Described refrigeration compressor is provided with outlet valve; Comprise valve plate 1, exhaust valve plate 2 and exhaust valve plate limiting board, described exhaust valve plate limiting board is cold rolling carbon steel limiting board 3, on the described cold rolling carbon steel limiting board 3 towards the surface of exhaust valve plate 2 one side on be provided with the damping material layer.
Described damping material layer covers sheet 5 for damping alloy.
The material that described damping alloy covers sheet 5 is that Mn-Cu is an alloy.
The described outlet valve limiting board of present embodiment is selected damping alloy for use, and damping alloy has the favorable damping performance, is structural material; High damping properties is arranged again, is alloy like Mn-Cu, has the good characteristics of vibration dampening characteristic; Its mechanical strength is high, and is corrosion-resistant, high temperature resistant, thermal conductivity is good.
Concrete mode of execution is:
Cold rolling carbon steel limiting board material 3 of the prior art is covered one deck damping alloy cover sheet 5; Damping alloy is that a kind of in-fighting is big, good damping result; Can make the vibration special metal material of decay rapidly, the punching performance of this kind metallic material is good simultaneously, does not change present punch press characteristic; Need not adjust mould yet, directly strike out the outlet valve limiting board of damping alloy.
When exhaust valve plate 2 at a high speed strikes damping alloy exhaust limiting board; Exhaust valve plate 2 impacts the acoustic energy that mechanical noise produced of cold rolling carbon steel limiting board 3; By damping alloy consumption, the absorption of cold rolling carbon steel limiting board 3; Resistive seat material destroys the impedence matching between valve block, the valve seat, cuts off the noise transmission approach.
Mode by shown in Fig. 5 is assembled.
Embodiment three:
Like Fig. 6 and shown in Figure 7; A kind of fully-enclosed refrigerating compressor noise-reduction structure provided by the invention, described refrigeration compressor is provided with outlet valve, comprises valve plate 1, exhaust valve plate 2 and exhaust valve plate limiting board; Described exhaust valve plate limiting board is a compostie damp sheet metal 6; Described compostie damp sheet metal 6 structures are three layers, and the two-layer of its outside is compostie damp surface layer plate 7, and the centre accompanies one deck compostie damp sandwich board 8.
The material of described compostie damp surface layer plate 7 is steel or aluminium sheet; The material of described compostie damp sandwich board 8 is the viscoelasticity macromolecular material.
The described exhaust valve plate limiting board of present embodiment adopts compostie damp sheet metal 6, and compostie damp sheet metal 6 is between two block plates or aluminium sheet, accompanies extremely thin viscoelasticity macromolecular material, just constitutes the compostie damp sheet metal.When the sheet metal flexure vibrations, through its damping characteristic of shear deformation performance of macromolecular material, not only fissipation factor is big for it, and under normal temperature or high temperature, all can keep the favorable damping performance.
Concrete mode of execution is:
Change former cold rolling carbon steel limiting board 3 materials into a kind of compostie damp sheet metal 6; The compostie damp sandwich board 8 that compostie damp sheet metal 6 accompanies between two block plates or aluminium sheet (being compostie damp surface layer plate 7) is extremely thin, processed by the viscoelasticity macromolecular material; Utilize plyability damping metallic material punching performance preferably, directly punching press on former cold rolling carbon steel limiting board mould.
Because exhaust valve plate 2 impacts the acoustic energy that mechanical noise produces of valve seat plyability damping sheet metal valve seat and is absorbed consumption by the plyability damping sheet metal of the exhaust limiting board of plyability damping sheet metal making; Impedence matching between the compostie damp limiting board seat material destructive valve sheet valve seat; Cut off the noise transmission approach, reduced the mechanical noise that compressor knocks.
Mode by shown in Figure 7 is assembled.
To embodiment three, the intensity of exhaust valve plate limiting board structure guarantees that by each base metal material wherein damping capacity is guaranteed by elastic material and restraint layer structure at the foregoing description one.The invention of above-mentioned several kinds of modes; Its principle is exhaust valve plate contacts top in the way of opening travel the limiting board that damping characteristic is arranged, and makes valve block produce decelerating effect, stops until valve block; The acoustic energy that mechanical noise produces that valve block impacts valve seat is absorbed consumption by the damping layer of valve seat; The noise transmission approach is cut off in impedence matching between the resistive seat material destructive valve sheet valve seat, has reduced the mechanical noise that compressor knocks.
Embodiment four:
Like Fig. 8 and shown in Figure 9; A kind of hermetically sealed compressor provided by the invention becomes the rigidity denoising structure; Described refrigeration compressor is provided with outlet valve, comprises valve plate 1, exhaust valve plate 2 and exhaust valve plate limiting board, and described exhaust valve plate limiting board is cold rolling carbon steel limiting board 3; Described outlet valve is established exhaust buffer substrate tablet 9, and described exhaust buffer substrate tablet 9 is located between described exhaust valve plate 2 and the cold rolling carbon steel limiting board 3, and is fixed on the described exhaust valve plate 2.
The material of described exhaust buffer substrate tablet 9 is a spring steel.
The described outlet valve limiting board of present embodiment assembly increases exhaust buffer substrate tablet 9, and exhaust buffer substrate tablet 9 is spring steel that a kind of thickness is thinner, rigidity is lower.
When exhaust valve plate 2 is opened, because thinner thickness, rigidity are little, the exhaust buffer substrate tablet 9 on contact top in the way of opening travel; The huge kinetic energy of exhaust valve plate 2 is deflated buffer substrate tablet 9 and absorbs, and exhaust valve plate 2 produces and slows down, and stops up to exhaust valve plate 2; Because being deflated buffer substrate tablet 9, the kinetic energy of exhaust valve plate 2 absorbs; And behind the certain kinetic energy of exhaust buffer substrate tablet 9 absorptions, self only evoke small vibration, reduced the impulse machine noise of 2 pairs of valve seats of exhaust valve plate; The excitation noise source reduces, and plays the effect of vibration and noise reducing.
Concrete mode of execution is:
Mode by shown in Figure 9 is assembled: exhaust valve plate 2 is installed in the groove valve plate 1, and exhaust buffer substrate tablet 9 is installed on exhaust valve plate 2 then, and cold rolling carbon structure limiting board 3 is installed on exhaust buffer substrate tablet 9 again.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as adopted the improvement of the various unsubstantialities that method of the present invention design and technological scheme carry out; Or design of the present invention and technological scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (9)
1. fully-enclosed refrigerating compressor noise-reduction structure; Described refrigeration compressor is provided with outlet valve; Comprise valve plate (1), exhaust valve plate (2) and exhaust valve plate limiting board; It is characterized in that: described exhaust valve plate limiting board is a cold rolling carbon steel limiting board (3), described cold rolling carbon steel limiting board (3) go up towards the surface of exhaust valve plate (2) one side on be provided with the damping material layer.
2. according to the described fully-enclosed refrigerating compressor noise-reduction structure of claim 1, it is characterized in that: described damping material layer is spraying damping layer (4), and the material composition of described spraying damping layer (4) mainly comprises macromolecule resin.
3. according to the described fully-enclosed refrigerating compressor noise-reduction structure of claim 2, it is characterized in that: in described spraying damping layer (4), also be mixed with epoxies priming paint.
4. according to the described fully-enclosed refrigerating compressor noise-reduction structure of claim 1, it is characterized in that: described damping material layer covers sheet (5) for damping alloy.
5. according to the described fully-enclosed refrigerating compressor noise-reduction structure of claim 4, it is characterized in that: the material that described damping alloy covers sheet (5) is that Mn-Cu is an alloy.
6. fully-enclosed refrigerating compressor noise-reduction structure; Described refrigeration compressor is provided with outlet valve; Comprise valve plate (1), exhaust valve plate (2) and exhaust valve plate limiting board, it is characterized in that: described exhaust valve plate limiting board is compostie damp sheet metal (6), and described compostie damp sheet metal (6) structure is three layers; The two-layer of its outside is compostie damp surface layer plate (7), and the centre accompanies one deck compostie damp sandwich board (8).
7. according to the described fully-enclosed refrigerating compressor noise-reduction structure of claim 1, it is characterized in that: the material of described compostie damp surface layer plate (7) is steel or aluminium; The material of described compostie damp sandwich board (8) is the viscoelasticity macromolecular material.
8. fully-enclosed refrigerating compressor noise-reduction structure, described refrigeration compressor is provided with outlet valve, comprises valve plate (1), exhaust valve plate (2) and exhaust valve plate limiting board, it is characterized in that: described exhaust valve plate limiting board is a cold rolling carbon steel limiting board (3); Described outlet valve is established exhaust buffer substrate tablet (9), and described exhaust buffer substrate tablet (9) is located between described exhaust valve plate (2) and the cold rolling carbon steel limiting board (3), and is fixed on the described exhaust valve plate (2).
9. according to the described fully-enclosed refrigerating compressor noise-reduction structure of claim 8, it is characterized in that: the material of described exhaust buffer substrate tablet (9) is a spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100770661A CN102635534A (en) | 2012-03-22 | 2012-03-22 | Fully-closed noise reduction structure of refrigeration compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100770661A CN102635534A (en) | 2012-03-22 | 2012-03-22 | Fully-closed noise reduction structure of refrigeration compressor |
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| CN102635534A true CN102635534A (en) | 2012-08-15 |
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| CN2012100770661A Pending CN102635534A (en) | 2012-03-22 | 2012-03-22 | Fully-closed noise reduction structure of refrigeration compressor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705198A (en) * | 2012-05-25 | 2012-10-03 | 黄石东贝电器股份有限公司 | Low-noise exhaust limiting plate |
| CN103603789A (en) * | 2013-11-22 | 2014-02-26 | 安徽美芝制冷设备有限公司 | Valve plate of refrigerating compressor |
| CN103883501A (en) * | 2014-03-12 | 2014-06-25 | 加西贝拉压缩机有限公司 | Valve plate for refrigerator compressor |
| CN108119678A (en) * | 2016-11-28 | 2018-06-05 | 大众汽车有限公司 | Valve cell and the compressor with this valve cell |
| CN109209834A (en) * | 2017-06-29 | 2019-01-15 | 上海海立电器有限公司 | A kind of exhaust valve plate applied to compressor |
| CN111852873A (en) * | 2020-07-27 | 2020-10-30 | 重庆长安汽车股份有限公司 | Mechanical vacuum pump |
| CN112780529A (en) * | 2019-11-07 | 2021-05-11 | 上海海立电器有限公司 | Compressor upper cylinder cover, compressor and processing method of compressor upper cylinder cover |
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| CN109209834A (en) * | 2017-06-29 | 2019-01-15 | 上海海立电器有限公司 | A kind of exhaust valve plate applied to compressor |
| CN112780529A (en) * | 2019-11-07 | 2021-05-11 | 上海海立电器有限公司 | Compressor upper cylinder cover, compressor and processing method of compressor upper cylinder cover |
| CN111852873A (en) * | 2020-07-27 | 2020-10-30 | 重庆长安汽车股份有限公司 | Mechanical vacuum pump |
| CN111852873B (en) * | 2020-07-27 | 2022-08-09 | 重庆长安汽车股份有限公司 | Mechanical vacuum pump |
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Application publication date: 20120815 |